Expander roll

Details Expander roll Expander roll

2006-04-18

2006-04-18

Matecki, Kathy (Department: 3654)

Winding, tensioning, or guiding

Material guide or guard

Rotatable

Reexamination Certificate

active

07028946

ABSTRACT:
An expander roll that has a plurality of metallic, cylindrical roll members is constructed to obtain sufficient liquidtightness, wherein a gap-facing concave portion19is formed in the outer circumferential surface of a ring-shaped elastic packing17with which a gap18between adjoining, cylindrical roll members6A and6B is closed, in addition, a required number of concave portions21are formed in both side parts of the gap-facing concave portion19so as to form pleat-like portions22and the outer circumferential surface of the pleat-like portion22is fixed to the inner circumferential surfaces of the cylindrical roll members6A and6B on the same side as the side of the outer circumferential surface of the pleat-like portion22.

REFERENCES:
patent: 4236285 (1980-12-01), Gallant
patent: 4339855 (1982-07-01), Demiere
patent: 4869413 (1989-09-01), De Lucchi
patent: 6042525 (2000-03-01), Rajaniemi
patent: 2002/0077235 (2002-06-01), Munsche et al.
patent: 57-006122 (1982-01-01), None

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